PCF8833 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'PCF8833' PDF : 112 Pages View PDF
Philips Semiconductors
STN RGB - 132 × 132 × 3 driver
Objective speciï¬cation
PCF8833
6.2.22 COLOUR SET
With the Colour set (RGBSET) command the mapping from the 256-colour interface data is translated to the 4 kbyte
colour RAM data of the PCF8833 can be changed. The translation table must be changed, if necessary, before sending
256 colour data. For the red and green pixel 8 from the available 16 grey scales can be selected. For the blue pixel 4
from the 16 grey scales can be selected. The default or reset state of the colour mapping can be found in Table 32.
If the 256-to-4 kbyte colour mapping needs to be changed, the whole table must be sent. The mapping of colours is done
when writing data into the RAM, through the application of the Look-Up Table (LUT).
Table 32 Colour set register bits
D/C D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
1
0
1
1
0
1
1
X
X
X
X
R3
R2
R1
R0
1
X
X
X
X
R3
R2
R1
R0
1
X
X
X
X
R3
R2
R1
R0
1
X
X
X
X
R3
R2
R1
R0
1
X
X
X
X
R3
R2
R1
R0
1
X
X
X
X
R3
R2
R1
R0
1
X
X
X
X
R3
R2
R1
R0
1
X
X
X
X
R3
R2
R1
R0
1
X
X
X
X
G3
G2
G1
G0
1
X
X
X
X
G3
G2
G1
G0
1
X
X
X
X
G3
G2
G1
G0
1
X
X
X
X
G3
G2
G1
G0
1
X
X
X
X
G3
G2
G1
G0
1
X
X
X
X
G3
G2
G1
G0
1
X
X
X
X
G3
G2
G1
G0
1
X
X
X
X
G3
G2
G1
G0
1
X
X
X
X
B3
B2
B1
B0
1
X
X
X
X
B3
B2
B1
B0
1
X
X
X
X
B3
B2
B1
B0
1
X
X
X
X
B3
B2
B1
B0
DEFAULT
2DH
00H
02H
04H
06H
09H
0BH
0DH
0FH
00H
02H
04H
06H
09H
0BH
0DH
0FH
00H
04H
0BH
0FH
DESCRIPTION
red tone 000
red tone 001
red tone 010
red tone 011
red tone 100
red tone 101
red tone 110
red tone 111
green tone 000
green tone 001
green tone 010
green tone 011
green tone 100
green tone 101
green tone 110
green tone 111
blue tone 00
blue tone 01
blue tone 10
blue tone 11
6.2.23 PARTIAL AREA
The Partial area command (PTLAR) sets the partial display area and displays the RAM content of this area. In the partial
Display mode the drive voltage can be reduced.
Table 33 Partial area register bits
D/C
7
6
0
0
0
1
AA1S7 AA1S6
1
AA1E7 AA1E6
5
1
AA1S5
AA1E5
4
1
AA1S4
AA1E4
3
0
AA1S3
AA1E3
2
0
AA1S2
AA1E2
1
0
AA1S1
AA1E1
0
0
AA1S0
AA1E0
DEFAULT
30H
tbf
tbf
2003 Feb 14
28
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